baber/WOPTO huggingface dataset:
Patent GB-1261964-A (GB)
Title: Sewage treatment plant
IPC: B01D21/02
Filed: 1969-01-31
Abstract: 1,261,964. Treating sewage. NEPTUNE MICROFLOC Inc. 31 Jan., 1969 [5 Feb., 1968], No. 5425/69. Heading B1D. [Also in Division C1] A sewage treatment plant includes a sewagereceiving and aeration chamber 22, means, e.g. a weir 50, for transfer of solid-depleted effluent from the aeration chamber to a filter chamber 24, and a chamber 28 to receive the filtrate, means, e.g. pipes 58, 60, pump 21 and valve 71, being provided to pass back filtrate from chamber 28 to the filter chamber to effect cleansing of a filter 52. The plant comprises an outer steel container 10 into which the raw sewage is passed via inlet 30 and a bar screen or comminutor 32. An air compressor 34 may supply air to diffusers 38 or mechanical surface aeration devices may be used. A bank of tubes 44 settle out suspended solids from effluent passing to the filter chamber 24 and allow them to slide back into the aeration chamber 22. The filter 52 comprises a bed of three or more materials of different specific gravities and is supported on a perforated plate 54. Filtrate is passed through pipes 58, 60 by a pump 62 into chamber 28, chlorine being injected at 64. Treated filtrate is discharged through an over-flow pipe 66. The flow rate of effluent through filter bed 52 is controlled by a float valve 72 in series with pump 62, the float valve being operated by means, e.g. a float 74, which senses the level of effluent above filter 52. When the level of effluent reaches a predetermined maximum in filter chamber 24, the float 74 operates a switch 77 which shuts off pump 62. An overflow outlet 78 is provided for discharge of excess effluent. Filtrate is passed back by pipes 58, 60 to a point below filter 52 by means of pump 21 and valve 71. Surface cleansing of filter 52 is effected by diverting some of the backwashed filtrate from pipe 60 to a surface wash system 29 via a pipe 27. Material dislodged from filter 52 flows into a sludge storage chamber 26 through line 23 and a valve 79 closes weir 50 to prevent entry of backwashed filtrate to the aeration chamber 22. Liquid displaced from the sludge storage chamber 26 is transferred to the aeration chamber 22 through a baffled decant pipe 25. Return of filtrate to the filter. chamber 24 may be initiated at set intervals or automatically by pressure sensors 81, 82 or a filtrate turbidity meter 84. A float 80 in chamber 28 operates a switch 76 to shut off pump 21 when the level of liquid in chamber 28 falls to a minimum. Scum &c floating above tubes 44 may be transferred to aeration tank 22 through pipes 51, 55 and air lift pump 53. An air lift pump 90 pumps excess sludge from aeration chamber 22 into sludge storage chamber 26 via pipe 92.
Patent GB-230087-A (GB)
Title: Seal fastening and method of making same
Filed: 1925-02-27
Abstract: An adhesive for securing seal discs of celluloid or like material to letters, documents, packets, bags, boxes, tie cords, &c. comprises a known solution of celluloid in acetone with the addition of carbon tetrachloride, and dextrin to accelerate drying; asbestos powder to render the adhesive viscous may also be added.  Alcohol, wood spirit, or the like may be used as solvents for the celluloid in place of acetone.  According to the Specification as open to inspection under Sect. 91 (3) (a), oxalic acid may be added to the adhesive, together with carbon disulphide or like substance.  This subject-matter does not appear in the Specification as accepted.
Patent GB-552360-A (GB)
Title: Improvements in or relating to spectacle frames
IPC: G02C7/12
Filed: 1942-04-23
Abstract: 552,360. Spectacle frames. INTERNATIONAL POLAROID CORPORATION. April 23, 1942, No. 5489. Convention date, Nov. 12, 1941. [Class 97 (i)] A spectacle frame is formed from cardboard or other flexible sheet material, the temples being integral with the front of the frame and bent up from the sheet, and the front being formed with apertures over which separate window material may be secured. As shown, the temples each comprise two strips 22, 24 connected together and to lugs 16 on the front 12 by scored hinge lines. The strips 24 have ear pieces 26, and each of the temples, when in the plane of the sheet, extends along half of the upper edge of the fronts with the piece 26 adjoining an end of the front. The frame may be formed by stamping, the edges of the temples being partially separated by short cuts, or by scoring, from the edges of the front, to facilitate complete separation by hand. The front has a nose gap 15 and window apertures 14 over which polarizing material, coloured plastic material &c. may be secured by adhesive or by staples 34. The window material may be such that the spectacles may be used for analyzing projected stereoscopic images.
Patent GB-512934-A (GB)
Title: Improvements in piston rings
IPC: F16J9/14
Filed: 1938-02-22
Abstract: 512,934. Piston rings. BRITISH PISTON RING CO., Ltd., OUBRIDGE, W. A., BRISTOL AEROPLANE CO., Ltd., and MANSELL, H. C. Feb. 22, 1938, No. 5500. [Class 122 (i)] A split piston or like packing ring is provided with a metal bridge or secondary ring which is retained in position by reason of its tongue and groove assembly. The ring b has a bridge piece a over the gap b<2> which fits into grooves b<4> in the inner periphery of the ring. Alternatively the bridge piece may be extended to form a secondary ring. The fitting may be carried by grooves in an upper or lower face of the ring and one end may be secured by welding or the like thereto.
Patent GB-1110353-A (GB)
Title: Chlorinated polymer and production thereof
IPC: C08F8/20
Filed: 1966-02-09
Abstract: Chlorinated polybutene-1 containing 26 to 40 weight per cent of chlorine, may be prepared by dissolving 5 to 15 weight per cent of polybutene-1 having a melt index greater than 0.1 in a solvent and reacting with chlorine at 55 DEG  to 65 DEG  C. in the presence of a chlorination catalyst. The solvent may be a halogenated aliphatic or aromatic hydrocarbon, and the catalyst may be ultra-violet light or an organic peroxide.  The products may be compounded with stabilizers, e.g. organotin compounds, barium, calcium and lead salts, epoxy resins and epoxidized fats and oils; and may be formed into heat-shrinkable films by extruding, calendering or solvent casting, or heat-shrinkable foams by expanding with blowing agents such as methylene chloride, acetone, methyl ethyl ketone, azobisformamide, azobisisobutyronitrile, N,N1 - dinitrosopentamethylene tetramine, benzene-1,3-disulphonyl hydrazide, diphenylsulphone - 3,31 - disulphonyl hydrazide, 4,41 - oxybis(benzene sulphonyl hydrazide) and N,N1-dimethyl-N,N1-dinitrosoterephthalamide, or pressurized nitrogen or carbon dioxide.  In examples (I-VI and XIV) polybutene-1 is chlorinated in carbon tetrachloride in the presence of benzoyl peroxide, and the chlorinated polybutenes are (XV and XVI) blow extruded to form heat-shrinkable films and (XVII) expanded with azobisformamide to form a foamed sheet.  The foam may be warmed, compressed and cooled and re-expanded by heating.
Patent GB-256874-A (GB)
Title: Improvements in air propellers
IPC: B64C11/04
Filed: 1926-03-01
Abstract: 256,874. Short, A. E., Short, H. O., and Gouge, A. March 1, 1926. Screw propellers.- Airscrews are constructed with blades which are slotted at the roots and interengage, the boss being completed by four packing blocks. The parts are held together by through bolts. The blades 1, 2 are each longer than half the diameter of the propeller and have longitudinal slots at the roots, the edges of the slots fitting over the sides of the opposite blade. The spaces between the blades are fitted with blocks 3, 4 to form the ends of the boss and blocks 5, 6 to complete the body. Cross bolts 8 pass through the blocks 5, 6 and blade roots whilst main bolts 7 pass through the blocks 3, 4, blade roots, ring 9 and flange 10 of the propeller shaft 11. In a modification the flange has a sleeve which is secured to the shaft and passes through a central hole in the assembled parts of the propeller.
Patent GB-564249-A (GB)
Title: Improvements in or relating to apparatus for preparing tins for baking buns, cakes and the like
IPC: A21B3/16
Filed: 1943-02-04
Abstract: 564,249. Cleaning baking tins. CARRICKS (CATERERS). Ltd., and STEEL, D. W. Feb. 4, 1943, No. 5705/44. Divided out of 564,218. [Class 28 (i)] Baking tins, after being cleaned by holding a tin on a rotated scraper block 2, are further cleaned by a piece of card cloth 7 clamped on a similar conical block 3 by an openwork frame 5 secured by keyhole slots fitting over pin-heads 6 on the block.
Patent GB-811297-A (GB)
Title: Improvements in or relating to cords
Inventor: GOY RONALD STANSFIELD
IPC: D02G3/44
Filed: 1955-02-26
Abstract: 811,297. Cords. DUNLOP RUBBER CO. Ltd. Feb. 16, 1056 [Feb. 26, 1955], No. 5799/55. Addition to 775,093. Class 109 Cords suitable for stringing tennis racquets are made by coating a core of textile material, which may be nylon, polyethylene - terephthalate or other synthetic long-chain polymer, with an adhesive which preferably contains nylon and phenol, and wrapping thereon one or more layers of tape made of a synthetic long-chain polymer, preferably the same as thatcomprising the core. Reference has been directed by the Comptroller to Specification 732,535.
Patent GB-780349-A (GB)
Title: Improvements in and relating to means for detecting leakages from tubes
Inventor: BOSTOCK WILLIAM
IPC: G01M3/18
Filed: 1955-02-28
Abstract: 780,349. Indicating leakages. SIMONCARVES, Ltd. Feb. 9, 1956 [Feb. 28, 1955], No. 5840/55. Class 99(2). [Also in Group XXXV] In means for detecting leakages of moisture from a tube 2 conveying water or an aqueous solution or suspension for cooling purposes and immersed in oil or other electrically non-conducting material, the tube is covered with a layer 3 of electricalinsulating material, e.g. mutton-cloth, and wound over the latter are two helically wound, spacedapart, bare wires 4, 5 which are connected to an electric. al circuit so that a flow of current from one wire to the other due to leakage of water from the tube can be detected. As shown, the tube is arranged in an electrical transformer and the wires of copper are connected to a low-voltage electrical supply 6 and an alarm, warning signal or circuit breaker 7, operation of the latter being caused by a short-circuit between the wires in the vicinity of a leak. The wires may be covered by a water-impervious layer.
Patent GB-1076281-A (GB)
Title: Feeding plastic substances in dosed quantities
IPC: A01J21/02
Filed: 1965-02-11
Abstract: 1,076,281. Delivering measured quantities of semi-liquid material. UNILEVER Ltd. Feb. 11, 1965 [Feb. 14, 1964]. No. 6006/65. Heading B8N. An apparatus for dispensing measured quantities of semi-liquid material, such as butter, comprises a measuring piston 11 rociprocably mounted in a channel 10 of a member 5 which is rotatably mounted in a casing 1 in order to bring the channel into alignment with inlet and outlet openings 2, 3, the piston being actuated by cam-and-lever means 40, 41, 34, 35, 36, 23 such that the movement of the piston is arrested until overlapping between the inlet and outlet and the channel 10 is effected, after which the piston is first positively driven over part of its stroke, whereafter the piston is released to allow it to complete its stroke under the influence of the filling pressure of the material to be dispensed. The piston is formed with a cam track 19, 20, 21 (Fig. 3, not shown) which is adapted to co-operate with a roller 22 rotatably mounted on a lever 23 which is oscillated via the cam-andlever means 34, 35, 36, 40 and 41. The shaping of the cams 40, 41 and the shape of the cam track 19, 20, 21 is such that, in operation, the piston is prevented from moving in the channel 10 until the channel is overlapped with the inlet 2 thereby allowing the pressure of the material to build up. During further rotation of the member 5, the oscillation of the lever 23 and roller 23 causes the piston to be first positively driven until it is finally moved under the pressure of the incoming material thereby forcing the material on the opposite side of the piston through the outlet 3. When the member 3 has made a complete revolution, the piston is returned to its initial position. The stroke of the piston may be adjusted by varying the position of the tapered end 13 of a shaft 12 in relation to the tapered ends 14 of a groove 16 in the piston.
Patent GB-1159654-A (GB)
Title: Curable Polyurethanes
IPC: C08G18/36
Filed: 1967-02-08
Abstract: 1,159,654. Polyurethane coatings. CELANESE COATINGS CO. 8 Feb., 1967 [17 Feb., 1966], No. 6052/67. Heading B2K. [Also in Division C3] Substrates such as electrolytic tin plate may be coated with a solution in solvent of a curable polyurethane which has been prepared by reacting (i) an ester derived from a poly 1,2-epoxy compound and an unsaturated fatty acid containing 12 to 24 carbon atoms, being free from unreacted epoxy groups and containing an average of one alcoholic hydroxyl group per molecule, (ii) a second such ester containing an average of two alcoholic hydroxyl group per molecule, and (iii) a diisocyanate, the compounds being reacted in the molar ratio (i):(ii):(iii) of 2:n:n+1 wherein n is 1 to 15, the coating being cured by heating, thus also driving off the solvent. The composition may be applied by brushing, doctor blade, dipping or spraying.
Patent GB-208060-A (GB)
Title: Improved means for delivering measured quantities of aerated liquid
IPC: B67D1/00
Filed: 1923-03-02
Abstract: 208,060. Kent, W. G. March 2, 1923. Liquid-meters.-A meter of known construction for manuring aerated water is provided with means for preventing the passaae of free gas through the meter. The meter is provided with a chamber B having a supply pipe C, a pipe G leading to the meter, and a pipe E for the escape of gas leading to the meter outlet or the atmosphere. Float valves F, K are fitted. In a modification, a single float valve controls the pipes G, E.
Patent GB-582171-A (GB)
Title: Improvements in oscillation generators of the velocity modulation type
IPC: H01J25/08
Filed: 1942-05-08
Abstract: 582,171. Yelocity-modulated tubes. STANDARD TELEPHONES & CABLES, Ltd., and ROACH, R. G. May 8, 1942, No. 6279. [Class 39 (i)] In a velocity modulated oscillation generator, a variable-mu grid is interposed in the path of the electron beam so that the dimension of the beam perpendicular to the electric vector of the electric field in the resonator can be shortened as the frequency increases ; the beam current is correspondingly reduced. As shown in Fig. 1, the oscillator may be of the type in which the beam from an elongated cathode 5 passes through a tuned coaxial line 3, 4 to the collector 6. The grid 7 may be uniformly slotted and bent, as shown, or flat or bent with tapered slot, or inclined, or a wound grid of any similar properties. The widest or most permeable part of the grid is opposite an antinode ; if the resonator system is symmetrical, this part is in the middle of the grid, but it may be at one end, so that grid and cathode may be reduced to half of the symmetrical case. If the antinode moves with frequency variation, the best position of the grid is fixed at the highest frequency to be used. Specification 537,490 is referred to.
Patent GB-539314-A (GB)
Title: Improvements in or relating to layers sensitised by means of a diazonium compound and method of preparing such layers
IPC: G03C1/52
Filed: 1940-04-08
Abstract: 539,314. Photographic diazotype processes. PHILIPS LAMPS, Ltd. April 8, 1940, No. 6347. Convention date, April 11, 1939. [Class 98 (ii)] A light-sensitive layer is produced on a support, preferably water-impermeable, by suspending a diazonium compound in a solution of water-insoluble binder in a volatile organic liquid, in which is preferably also suspended a coupling component, and applying the dispersion to the support and evaporating the organic liquid. The material to be suspended and the organic liquid may be ground together in a ball mill. In an example, an aluminium plate is coated with a suspension of the zinc chloride double salt of p-diethylaminobenzenediazonium chloride and phloroglucinol in a solution of cellodammar resin in carbon tetrachloride, the solvent is partly evaporated at 80 ‹C. the excess suspension is poured off, and the solvent completely evaporated. After exposure, development may be effected with gaseous or aqueous ammonia. The surface may be sprayed with a 5 per cent. solution of cellodammar resin in carbon tetrachloride. A suspension of the cadmium and zinc chloride double salts of p-benzylethylaminobenzenediazoniun chloride may also be used. Acids such as tartaric or oxalic may be added to prevent premature coupling. In a further example, an aluminium plate is coated with a suspension of the cadmium and zinc chloride double salts of p-benzylethylaminobenzenediazonium chloride in a solution of cellodammar resin in trichlorethylene. After exposure, development is effected with an aqueous ammonia solution of phloroglucinol. The coupling component, for example #-naphthol, may be dissolved in the organic liquid, for example benzene. The finished images may be protected by a layer of celluloid lacquer. Other supports referred to are metals other than aluminium, glass, cellulose acetate, rubber, rubber-derivatives, and paper. Other binding agents referred to are polymerized hydrocarbons such as polystyrene, polymerized unsaturated fatty acid esters such as derivatives of acrylic acid and its homologues, vinylacetic acid, and resins and gums such as ester gum, mastic, and colophony. Toluene is also referred to as a volatile organic solvent. Specification 524,786 is referred to.
Patent GB-551945-A (GB)
Title: Method of and apparatus for making glass
IPC: C03B5/24
Filed: 1941-05-20
Abstract: 551,945. Control of motors. HARTFORDEMPIRE CO. May 20, 1941, No. 6476. Convention date, March 1. [Class 38 (iii)] [Also in Group XII] Glass making materials are fed along paths which intersect through openings 24 in a triangular doghouse of a glass melting tank 23 towards the side of the tank by means of feeders 25 driven by electric motors 26 which are controlled so that the materials are fed alternately through each of the openings 24 or through both openings, the intervals between the feeding operations and the duration of the feeding operations being variable. The furnace shown is a regenerative reversible one in which firing takes place from each side alternately by the operation of a reversing valve 29 which operates an electric switch to close one or other of the sets of contacts 32, 34 to supply current through delay timers 42, 50 and feed timers 47, 55 to motor starters 57, 67 for the motors 26. Delay and feed timers 93, 96 are brought into operations when both feeders are employed at one time. The switch 31 also closes contacts 35 for operating switches 65, 75 when it is desired to vary the duration of feed to opposite sides of the furnace. Specification 419,681, [Group XII], is referred to.
Patent GB-1190501-A (GB)
Title: Apparatus for Stranding Individual Cord-Like Elements with a Reversing Lay.
Inventor: HEIDENREICH PAUL
IPC: D07B3/00
Filed: 1968-02-09
Abstract: 1,190,501. Storage stranding machine. KABEL-UND METALLWERKE GUTEHOFFNUNGSHUTTE A.G. 9 Feb., 1968 [11 'Feb., 1967], No. 6490/68. Heading D1T. In the continuous storage stranding machine illustrated, the elements to be stranded are first twisted together, as at 16, and the resulting strand is then stored on a winding body 1 serving as storage means disposed co-axially to the stranding axis and arranged to rotate thereabouts in alternating senses of rotation, the strand being wound onto the body 1 by guide member 2 and off the body :1 by a further guide member 3, fixing means 11, 12 being provided for holding the lay reversal points of .the cable on the winding body 1 as the wind- ,ing is moved from one end of the body I to the other. The 'body 1 may comprise at least two endless belts 5, 6 passing around rollers 7, 8 that are themselves rotatable about the stranding axis. When the beginning of a stranded line appears at the outlet end of the storage means, the direction of rotation of the guide member 3 must be changed to prevent the stranded line from being unstranded on leaving the storage means. At the same time the relative rotation of the guide 2 and the body 1 is changed and the incoming cable secured to one of the fixing means 11, 12 which, at this stage, will be adjacent the guide 2. The fixing means 11, 12 may be pins. An inlet roller 16 can be replaced by a stranding nipple.
Patent GB-185705-A (GB)
Title: Improvements relating to safety valves for steam generators
IPC: F22B37/42
Filed: 1922-03-06
Abstract: 185,705. Tetlow, E. March 6, 1922. Alarms, high and low water.-A float for use with safety valves of the kind adapted to be opened by high pressure or low water is made of cast iron and is formed in two parts a, b connected together by cross members secured by bolts so as to leave a central aperture g for the actuating spindle. Strengthening struts e are provided and each bolt hole has a strengthening piece d.
Patent GB-491804-A (GB)
Title: Improvements in or relating to impregnated paper, fabric and the like
IPC: D21H17/35
Filed: 1937-03-08
Abstract: Paper, fabric, wood, glass, metal, and like materials are coated or impregnated with a solid polymer of ethylene by treatment with a solution or suspension of the polymer, by application of a melt of the polymer or by application of a pre-formed film of the polymer (with the aid of heat with or without pressure).  Laminated materials may be prepared from the coated materials alone, coated materials and uncoated materials, or uncoated materials and interlayers of sheets of the polymer. The polymers may be prepared according to Specification 471,590, it being preferred to use polymers of molecular weight not less than 4,000.  Suitable solvents for the polymer include xylene, benzene, toluene, tetrahydronaphthalene, decahydronaphthalene, chlorobenzene, amyl acetate or trichlorethylene.  Suitable materials for coating, impregnating or laminating include wood-pulp paper, pulp board, rag paper, vegetable parchment, translucent paper, absorbent papers, filter paper, blotting paper, sheets of regenerated cellulose, cellulose esters, cellulose ethers, or synthetic resins, fabrics of cotton, jute, linen, wool, silk, rayon, synthetic resins or rubber, wood, glass, metal or metal gauze.  In examples: (1) thin wood-pulp paper, (2) wood-pulp paper, (3) rag paper, (4) a transparent paper, (6) cotton fabric, (7) porous paper, (9) paper for milk containers, and (12) regenerated cellulose sheet, are impregnated with a hot xylene solution of the polymer; (10) a fabric or screen of iron wires is coated with a hot toluene solution of the polymer, or a pre-formed sheet of the polymer is applied by heat and pressure; (5) a film of the polymer is placed between two impregnated sheets prepared according to example 4 and hot-pressed; (8) porous paper is coated with powdered polymer or molten polymer and the coated paper heated; (11) a film of the polymer is hot-pressed onto vegetable-parchment paper.